Biometric Remote Key Authentication for Stolen Vehicle Key Risks

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Solution Overview

Problem

The increasing number of vehicle thefts caused by the loss or theft of remote control keys, which can be replicated to gain unauthorized access to vehicles.

Innovation Solution

A vehicle system that includes a remote control key with a biometric sensor and a key communication module, which performs wireless communication with a vehicle controller. The vehicle controller compares bio-information from the remote control key with bio-information stored in the vehicle memory or a server, ensuring that only authorized users can access and control the vehicle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a remote control key is used for wireless communication to control vehicle functions, then user convenience is improved, but vehicle security deteriorates due to risk of key loss or theft

Engineering Contradiction:
Improveuser convenienceVSAvoidvehicle security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent replaces traditional mechanical key systems with biometric authentication (fingerprint recognition). The biometric sensor captures the user's fingerprint, converts it to electrical signals, and transmits them wirelessly to the vehicle controller for authentication. This substitution of mechanical key verification with biological特征 verification fundamentally enhances security while maintaining convenience.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a server as an intermediary between the remote control key and the vehicle controller. The server stores bio-information templates and performs centralized authentication verification. When the vehicle controller receives bio-information from the remote control key, it forwards the verification request to the server, which compares the received data with stored templates and returns authentication results. This intermediary layer prevents unauthorized access even if the remote control key is lost or stolen.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If bio-information verification is implemented to prevent unauthorized access, then vehicle security is improved, but system complexity increases

Engineering Contradiction:
Improvevehicle securityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent divides the authentication system into distinct functional modules: a biometric sensor module in the remote control key for capturing fingerprint data, a wireless communication module for data transmission, a vehicle controller for receiving and forwarding data, and a server for centralized verification. Each module performs a specific function, making the overall complex system manageable through functional segmentation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The server automatically performs bio-information verification by comparing received fingerprint data with stored templates without requiring manual intervention. The system autonomously determines authentication results and controls vehicle access accordingly, reducing the need for complex manual verification procedures while maintaining high security standards.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20250029438A1Vehicle including remote control key and server
Publication Date: 2025.01.23 HYUNDAI MOTOR CO LTD
  • US20250029438A1 patent drawing
  • US20250029438A1 patent drawing
  • US20250029438A1 patent drawing

AI summary

A vehicle has a remote control key that includes a biometric sensor configured to recognize a user's bio-information, a key communication module configured to perform wireless communication with a vehicle, and at least one function button configured to control an operation of the vehicle through wireless communication with the vehicle. The vehicle also has a vehicle controller configured to compare bio-information transferred from the remote control key with bio-information stored in a server or with bio-information stored in a vehicle memory and determine whether the bio-information transferred from the remote control key is matched with the bio-information stored in the server or with the bio-information stored in the vehicle memory, the vehicle controller being configured to selectively perform a function corresponding to a control signal of the function button transmitted from the remote control key.